<template>
  <div class="child2">
    <h3>子组件2</h3>
    <h4>手机:{{ Phone }}</h4>
    <h4>弟弟给的玩具:{{ toy }}</h4>
  </div>
</template>

<script setup lang="ts" name="Child2">
import { ref, onUnmounted } from "vue";
import emitter from "@/utils/emitter";

const toy = ref("");

//给emmiter 绑定send-toy事件
emitter.on("send-toy", (value: any) => {
  toy.value = value;
});

let Phone = ref("Apple");

//在组件卸载的时候解绑事件
onUnmounted(() => {
  emitter.off("send-toy");
});
</script>

<style scoped>
.child2 {
  margin-top: 50px;
  background-color: orange;
  padding: 10px;
  box-shadow: 0 0 10px black;
  border-radius: 10px;
}
</style>
